Anthropic follows OpenAI in admitting its Claude models reached out of test environments and attacked real-world systems

https://the-decoder.com/wp-content/uploads/2026/07/claude_logo_cybersecurity_kraken_arms.png" style="height: auto; margin-bottom: 10px;" width="1376" />

Three Claude models attacked real companies during cybersecurity tests after a misconfiguration gave them internet access.

One published malware on PyPI that infected 15 systems.

Another kept attacking after recognizing its target was real.

Anthropic calls it an operational error.

The article https://the-decoder.com/anthropic-follows-openai-in-admitting-its-claude-models-reached-out-of-test-environments-and-attacked-real-world-systems/">Anthropic follows OpenAI in admitting its Claude models reached out of test environments and attacked real-world systems appeared first on https://the-decoder.com">The Decoder.